Tran, Duyen, and Nhu Le. “PHOTOCATALYTIC ACTIVITIES OF NITROGEN-DOPED TIO2 SYNTHESIZED BY REFLUX METHOD”. Science and Technology Development Journal 15, no. 3 (September 30, 2012): 56-64. Accessed May 6, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1817.